Daily Practice

GCSE Science

23rd June 1991

5 questions · GCSE · 584 questions in this band

1
Alkanes, Alkenes and Crude Oil
Name the catalyst used when an alkene reacts with hydrogen to form an alkane.
2
Alcohols, Carboxylic Acids and Polymers
State what happens to the carbon-to-carbon double bond of an alkene monomer during addition polymerisation.
3
Chemical Analysis
Which reagent is added, and in what colour change, to test for chlorine gas?
4
Tests for Ions, Gases and Flame Tests
Why must dilute nitric acid be added before silver nitrate solution when testing for a halide ion?
5
Chromatography and Instrumental Analysis
A sample produces only one spot when run in three different solvents. What does this suggest about the sample?

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